ddd dde ddn ddo ddp dds ddt de- ded dee den deo dep des det dnd dne dnn dno dnp dns dnt dod doe don doo dop dos dot dpd dpe dpn dpo dpp dps dpt dsd dse dsn dso dsp dss dst dtd dte dtn dto dtp dts dtt ed- edd ede edn edo edp eds edt eed eee een eeo eep ees eet en- end ene enn eno enp ens ent eo- eod eoe eon eoo eop eos eot ep- epd epe epn epo epp eps ept es- esd ese esn eso esp ess est etd ete etn eto etp ets ett ndd nde ndn ndo ndp nds ndt ne- ned nee nen neo nep nes net nne nnn nno nnp nns nnt no- nod noe non noo nop nos not npd npe npn npo npp nps npt nsd nse nsn nso nsp nss nst ntd nte ntn nto ntp nts ntt odd ode odn odo odp ods odt oed oee oen oeo oep oes oet on- ond one onn ono onp ons ont oo- ood oon ooo oop oos oot op- opd ope opn opo opp ops opt os- osd ose osn oso osp oss ost ot- otd ote otn oto otp ots ott p-p pdd pde pdn pdo pdp pds pdt ped pee pen peo pep pes pet pn- pnd pne pnn pno pnp pns pnt pod poe pon poo pop pos pot ppd ppe ppn ppo ppp pps ppt ps- psd pse psn pso psp pss pst pt- ptd pte ptn pto ptp pts ptt sdd sde sdn sdo sdp sds sdt se- sed see sen seo sep ses set snd sne snn sno snp sns snt sod soe son soo sop sos sot spd spe spn spo spp sps spt ss- ssd sse ssn sso ssp sss sst std ste stn sto stp sts stt tdd tde tdn tdo tdp tds tdt te- ted tee ten teo tep tes tet tnd tne tnn tno tnp tns tnt to- tod toe ton too top tos tot tpd tpe tpn tpo tpp tps tpt tsd tse tsn tso tsp tss tst ttd tte ttn tto ttp tts ttt